feat: add commitlint job

Signed-off-by: Andrea Terzolo <andrea.terzolo@suse.com>

Author: Andreagit97

.github/workflows/ci.yml

@@ -50,3 +50,33 @@ jobs:
         run: |
           go mod tidy
           make test
+  commitlint:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    env:
+      COMMITLINT_VERSION: "20.5.0"
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+      - name: Cache commitlint
+        id: cache-commitlint
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae # v5.0.5
+        with:
+          path: |
+            node_modules
+            package.json
+            package-lock.json
+          key: ${{ runner.os }}-commitlint-${{ env.COMMITLINT_VERSION }}
+      - name: Install commitlint
+        if: steps.cache-commitlint.outputs.cache-hit != 'true'
+        run: npm install -D @commitlint/cli@${{ env.COMMITLINT_VERSION }} @commitlint/config-conventional@${{ env.COMMITLINT_VERSION }}
+      - name: Print versions
+        run: |
+          git --version
+          node --version
+          npm --version
+          npx commitlint --version
+      - name: Validate PR commits with commitlint
+        run: npx commitlint --from ${{ github.event.pull_request.base.sha }} --to ${{ github.event.pull_request.head.sha }} --verbose